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Finding the Fourth Proportional to 11,789,978.12, 16,270,054.80 and 6,562,903.40

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Solution

The fourth proportional to 11,789,978.12, 16,270,054.80 and 6,562,903.40 is: 9,056,742.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789,978.12 : 16,270,054.80 = 6,562,903.40 : x
  2. Step 2: Convert to fraction form
    11,789,978.12/16,270,054.80 = 6,562,903.40/x
  3. Step 3: Cross multiply
    11,789,978.12x = 16,270,054.80 × 6,562,903.40
  4. Step 4: Simplify right side
    11,789,978.12x = 106,778,797,965,106.33
  5. Step 5: Solve for x
    x = 106,778,797,965,106.33/11,789,978.12
  6. Step 6: Final answer
    x = 9,056,742.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.